The QUICK SETUP/GRAVITY LOADING GUI leads the user through the setup procedure for gravity loading simulation. A typical GRAVITY LOADING GUI consists of DRAW TYPE, TOOL DEFINITION (BLANK, BINDER and LOWER TOOL), BLANK PARAMETERS, SOLVE OPTION and CONTROL as shown in Figure 8.1.2.
Figure 8.1.2 A typical gravity loading GUI for single action draw operation
DRAW TYPE
Enable the user to select one of the four standard draw operations provided in QS GUI.
TOOL DEFINITION GUI
Define the tool and blank for a gravity loading simulation.
BLANK PARAMETERS
Define blank material and properties.
SOLVE OPTIONS
The user may select either the EXPLICIT or IMPLICIT method for a gravity loading simulation. The EXPLICIT method requires a longer simulation time than the IMPLICIT method, but it provides good reliability. There are three Solve options: Explicit (Dynamic Relaxation), Implicit (Dynamic) and Implicit (Static). The Implicit (Static) method is recommended. When the Implicit (Static) method is selected, the solver will be defaulted to be double precision.
CONTROL
Define the initial velocity of blank.
The tool definition GUI allows the user to assign the tooling and blank mesh required for setting up a particular stamping simulation. For a SINGLE ACTION GRAVITY LOADING simulation (as shown in Figure 8.1.2), the tool definition GUI consists of BLANK, BINDER and LOWER TOOL.
By clicking on either the BLANK, BINDER or LOWER TOOL button, the dialog boxes as shown in Figure 8.1.3 will prompt the user to select the method of defining blank or tooling.
(a) Define Blank (b) Define Tool
Figure 8.1.3 The Tool Definition dialog box
If the blank mesh is available in a saved NASTRAN or DYNA file, the user can click the IMPORT MESH function to read in the blank mesh. The QS interface will automatically assign the part (blank mesh) as BLANK. The user can also read in the blank geometry (in CAD format) by selecting IMPORT CAD DATA function. The BLANK MESH function (as shown in Figure 8.1.3(a)) is then used to mesh the blank geometry. This function is similar to BLANK GENERATOR described in Section 11.5. After completing the mesh generation, the QS interface will automatically assign the part (blank mesh) as BLANK.
The TOOL MESH function (as shown in Figure 8.1.3(b)) meshes the tooling geometry. For detailed information about this function, refer to Section 5.3.4. The QS interface will also automatically assign the tool mesh as either BINDER or LOWER TOOL after the tool geometry is meshed.
The SELECT PART function (Figure 8.1.3(a)) allows the user to select the proper parts from the SELECT PART dialog box (Figure 8.1.4) and assign them as BLANK, LOWER TOOL and BINDER in the QS GUI. By clicking on SELECT PART function, the DEFINE BLANK dialog box is displayed, and the user can continue by adding the corresponding parts as BLANK, LOWER TOOL and BINDER. The SELECT PART function in the DEFINE TOOL dialog box (Figure 8.1.3(b)) is displayed. The DEFINE TOOL dialog box is shown in Figure 8.1.5.
Figure 8.1.4 A Schematic Illustration Showing the SELECT PART Operation for Blank Definition in QS
Figure 8.1.5 A Schematic Illustration Showing the SELECT PART Operation to Define the Lower Tool in QS
The user may define the blank material by clicking the NONE button as shown in Figure 8.1.2. The program will display the MATERIAL dialog box as shown in Figure 8.1.6. For detailed information about defining the blank material, refer to Section 11.9. The NONE button is disabled if no blank is defined in the tool GUI.
Figure 8.1.6 The Material dialog box
Follow the procedures listed below to set up the SINGLE ACTION gravity loading simulation.